Assertion: When coil in galvanometer with metallic core oscillates, then electromagnetic damping occurs.
Reason: Eddy currents generated in the core opposes the motion and brings the coil to rest quickly.
Options:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false and R is also false.